Im my experience (limited), changing CC in .profile does not change Lion’s (10.7.2) defaulting to i686-apple-darwin11-llvm-gcc-4.2. I wonder if this has anything to do with Apple’s own sym linking:
I am wary about breaking these and adding my own to
per Martin v. Löwis’s answer.
my stackoverflow response…. no one noticed I was running Lion in this response… odd b/c Leopard ships will GCC.